Heat-exchange apparatus



Oct. 20, 1925. 1,558,139

H; J. ZIMMERMANN I HEAT EXCHANGE 4APPARATUS F11ed`June 5-, 192?ATTORNEY.

`Patented Oct.` 20, 1925.

UNITED STATES l 71,558,139 PATENT. OFFICE;

HANS J'. ZIHMIEIRMANN, O'F PHILADELPHIA, PENNSYLVANIA, SSIGNOR T0SCHUTTE AND KOERTING COHFAN'Y, OF PHILADELPHIA, PENNSYLVANIA, ACORPORATION OF PENNSYLVANIA.

n HEAT-EXCHANGE nrrana'rns.

Application mea :une 5,

To all whom t .may concern.'

Be it known'tha-t I, HANS J. ZIMMERMANN,

a citizen of Germany, and a resident of the city of Philadelphia, in thecounty of Philadelphia, State of Pennsylvania, United States of America,have invented an Imrovement in Heat-Exchange Apparatus, of which thefollowing is a specification.

My invention relates to pipe apparatus, particularly tothe means forsupporting and holding the opposite ends of a cluster of pipes, whichopposite ends open into chambers at the opposite ends of the casingwithinv which the pipes are situated.

The opposite ends of thesaid. pipes are secured in diSk--like plates andthe principal objectof the invention is to provide a new and novel meansfor securing these plates in position at the opposite ends of the saidcas'- lng. L y v In theconstruction as' shown one of the disk-likeplates Virs-"movable or adjustable while-the other is stationary, andone of the objects of the inventionis `to provide a' new and .novelconstruction of means for securing thev Said plates in position of suchcharacter that 'the packing means'employed for rendering the same steamor air tight are interchangeable; that is to say, may be used oremployed in connectionA either with oneplate or. the other, as may bedesired.

A further object of the invention is touprovide novel meansforindicatingwhether or not the packing associated with themov.- able oradjustable plate ha's becomel'oose so that leakage is takmg place. IOther objects and advantages of the inven-` tion will be pointed Yout.in the detailed deik j saldopenings, the op osite ends of which arescription of the invention which follows or will be apparent therefrom.j

ln order that the invention may be readily understood and its practicaladvantages fully appreciated, reference may be had to the accompanyingdrawing in which one form of embodiment thereof is illustrated. However,it will be understood that the inventionis susceptible of embodiment inother forms of construction than that shown and that changes in thedetails of construction may be made within the scope of the claimswithout de arting from the invention.

In t e drawing: Fig. l1 iS' a Central vertical sectional view \meanSassociated with the movable disk-like bolts 24 and 25.

1922. Serial N0. 565,925.

pf a Ipipe apparatus embodying my invenion; Fig 2`is an enlargedfragmentary sectlonal view showing more clearly the construction andarrangement of the packingplate; and Fig. 3 is a similar View showingthe construction and arrangement of means forsec urlng the. stationarydisk-like plate in position. f

I teferring to the drawing: l designates the caslng of avpipe -apparatuswithin which is situated a cluster of pipes 2. The opposite ends of thesaid pipes are secured in openlngs through end plates 3 and 4, each ofwhich is provided with inwardly extending flanges 5 and 6. The oppositeends of theV casing 1 are closed by means of covers 7 and 8- whichconstitute chambers with which the opposite ends of the pipes 2 of the'cluster communicate. The inner end portionsof the walls. of the covers 7and 8 rare thickened and mter1or`portions thereof are cut out to formangular grooves 9 and 10. The inner edges ofthe outer walls of thesegrooves are cut away, as indicated at 12 and 13, to form outwardlyflaring Surfaces. The opposite endsn of thecasing 1 are likewisethlckened and the inner edges thereof Iare vcut away, as indicated` at15 and 16, to form outwardly flaring surfaces similar to the surfaces 12and 13.

- Adjacent its opposite ends the casing l is provided with laterallyoutwardly extending anges`20 and 21 each of which is provided 99 at-'intervals .with screw-threaded openings 22and- 23. Bolts24 and 25having screwthreaded inner ends are secured in the likewise screw-threeed and extend through openings 28 and 29 in laterally and outwardlyextending lianges 3() and 31 adjacent the inner ends or edges of thecovers 7 and 8. The said covers are adapted to 'be clamped and heldagainst the oppositev ends of the casing or against packing meansinterposed between the. Said opposite ends and the opposing ends of thecovers by means of nuts v 32 in engagement with the outer ends of the m6Interposed between the inner edge or end of the cover 7 and the adjacentopposingk end of the casing 1 is .a ring 35 having` upon its inner sidean annular groove 36. The said ring extends around the peripheralsurface of the plate 3 and the presence of the annular groove thereinprovides an annular chamber between the said ring and the said plate 3or its ange 5. The ring is provided With one or more holes orperforations 37 extending therethrough.

Instead o associating aseparate ring member with the opposite end plate4 and its iange 6 I have provided a laterally and outwardly extendingintegral flange 40 which extends between the opposing ends of the casing1 and the cover 8.

For the purpose of rendering the joints between the plates 3 and 4 andthe easing 1 and covers 7 and 8 air or steam tight l have providedpacking rings, as indicated at 41 and 42, of suitable elastic materialsuch as rubber, which when in compressed condition or state, as shown inthe drawing, are triangular in crosssection. As a matter ot'convenience, however, these packing rings may consist of members whichare of any other desired cross section; After the parts have been placedin position with the paekin rings in place around the outer edges of t eplates 3 and 4 and their flanges, which rings are situated above andbelow the ring-shaped member 35 and the annular integral flange 4L), thecovers are drawn tightly into position by tightening the nuts 32. Thepacking rings are compressed thereby into the triangular shape, as shownin Figs. 2 and 3.

It will be noted that by my construction I am enabled to employ packingrings of identical construction in connection with both plates 3 and 4for the purpose of rendering the joints between the same and the casingand covers air and gas tight.

The presence of the hole or holes 37 which extend Athrough thering-shaped member 35 permits steam or other fluid to escape in caseeither of the packing rings 41 should become loose and thus afford anindication to the operator or person in charge of the apparatus that thepacking had become loose and needed tightening.

It will be seen that by my invention I have provided an eflicient, novelmeans for closing the joints between the j opposite ends of a casing,thecovers therefor and the end plates in which the opposite ends of acluster of pipes are secured, which means is .not only economical as tocost of manufacture, but also may be placed and assembled readily inposition Within the structure.

Having thus described my invention, what claim and desire tol secure byLetters Patent is:

1. A heat exchange apparatus comprising iin combination a casing, endplates situated adjacent the opposite ends of said casing which platesare provided with openings which extend therethrough, a plurality ofpipes the opposite ends of which are secured in said openings, coverssecured to the opposite ends of said casing and forming with the saidplates chambers with which the opposite ends of the said pipeswznmunicate, a ring-shaped member situated between one end of the saidcasing and the opposin edge of a cover, which ring-shaped mem er looselysurrounds vone of thesaid end plates, and the said ringshaped memberbeing provided with an annulax` internal groove and with openingsleading'from, said groove to the atmosphere, and packing rings situatedupon opposite sides of said ring-shaped member and clamped against thesame and against the outer'edge of the said end plate by the opposingends of the said casing and the said cover, substantially as described.

2. A heat exchange apparatus comprising in combination a casing, coverssecured to the opposite ends of said casing, end plates situatedintermediate the said covers and thc said casing, the saidplatesgeach-being ro'- vided with holes extending therethroug 1, a.plurality Iofv pipes, the opposite ends of which extend into saidholes, a ring surrounding the outer edge of one of the said end plates,which plate is movable longitudinally of the said casing and withrespect to the said ring which ring is situated between an adjacent endof the casing and the inner end of one of the said covers. the inneredges of the said casing and cover upon opposite sides of the said ringbeing beveled outwardly and packing rings situ: ated inthe spaces formedby such outward beveling, substantially as described.

In testimony that I claim the foregoing as my invention, I have hereuntosigned my name 'this 23rd day of May, A. D., 1922.

HAN S J. ZIMMERMANN.

